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---
deprecations:
- |
Support for the `syslinux <https://wiki.syslinux.org/wiki/index.php?title=Syslinux_6_Changelog#Changes_in_6.04>`_
and the often separately package `isolinux <https://wiki.syslinux.org/wiki/index.php?title=ISOLINUX>`_
and `pxelinux <https://wiki.syslinux.org/wiki/index.php?title=PXELINUX>`_.
Legacy BIOS boot loaders, is deprecated and will be removed the future.
This is for two reasons. The first is because it is a BIOS mode bootloader,
and the shift to UEFI booting has reduced the need for these packages.
The second reason is a lack of maintenance, which is ultimately the same
reason Linux distributions are discussing dropping support and packaging.
Syslinux has not been updated since `2019 <https://repo.or.cz/syslinux.git/shortlog>`_.
Incidently, the file format it utilizes *is* supported by Power hardware,
and that may result in the configuration template remaining in Ironic for
the forseeable future.
- Support for use of `pxelinux <https://wiki.syslinux.org/wiki/index.php?title=PXELINUX>`_
is deprecated due to the deprecation of support for Syslinux.
- Support for virtual media booting with x86 Hardware in Legacy BIOS mode is
deprecated due to the dependency upon
`isolinux <https://wiki.syslinux.org/wiki/index.php?title=ISOLINUX>`_
for use of Legacy BIOS boot mode. ``isolinux`` is from the ``syslinux``
package and source tree.
- Deprecation of ``pxelinux``, as a result of the deprecation of ``syslinux``,
does ultimately mean the default for the ``pxe`` boot_interface to carry
defaults for the use of grub based network booting, specifically for
for operators who are unable to use iPXE.
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